package com.qf.air.interceptor;

import com.alibaba.druid.util.StringUtils;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.qf.air.constants.AirConstants;
import com.qf.air.entity.User;
import com.qf.air.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.concurrent.TimeUnit;

/**
 * @Author: 维多利加
 * @Date: 2021/3/25 19:20
 */
@Component
public class AuthenticationInterceptor implements HandlerInterceptor {

    @Autowired
    private UserService userService;

    @Autowired
    private StringRedisTemplate stringRedisTemplate;

    /**
     * 前处理
     * @param request
     * @param response
     * @param handler
     * @return
     * @throws Exception
     */
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //1. 从session中查询用户信息
//        User user = (User) request.getSession().getAttribute("user");
        String keySuffix = null;
        Cookie[] cookies = request.getCookies();
        if(cookies != null){
            for (Cookie cookie : cookies) {
                if(AirConstants.USER_COOKIE.equals(cookie.getName())){
                    keySuffix = cookie.getValue();
                    break;
                }
            }
        }

        if(!StringUtils.isEmpty(keySuffix)){
            String key = AirConstants.USER_REDIS_PREFIX+keySuffix;
            String user = stringRedisTemplate.opsForValue().get(key);
//            String user = jedisUtil.getValue(key);
            if(user != null){
                stringRedisTemplate.expire(key,AirConstants.USER_TIMEOUT, TimeUnit.SECONDS);
//                jedisUtil.expire(key,AirConstants.USER_TIMEOUT);
                return true;
            }
        }
        response.sendRedirect(request.getContextPath()+"/login.html");
        return false;
    }

}
